How to use a float level gauge to control a water pump? What is the principle of the float level gauge?

In order to control the stop of the pump well, many manufacturers choose to use the bladder level gauge. The balloon level gauge can accurately control the pump. In the next small edit, I will explain how the balloon level gauge controls the pump. It would be great if I can help you.How does the float level gauge control the pump?It is a device that uses a float level switch to change the state of the body through the buoyancy of the liquid to achieve the purpose of control. It is connected by a cable, placed on the liquid surface, and has a switch inside. When the liquid level reaches or drops to a certain height, the original standing or inclined state of the float level switch changes, and the state of the internal switch changes, and the signal is transmitted to the control mechanism.How the float level gauge controls the pumpThe control process of the pump is as followsWhen the liquid level is lower than 1# airbag liquid level switch, a low liquid level alarm signal will be issued;When the liquid level is higher than 2# ball liquid level switch, run a feed water pump;When the liquid level is higher than 3# ball level switch, run two feed water pumps;When the liquid level is higher than 4# ball level switch, run 3 feedwater pumps;When the liquid level is higher than the 5# ball level switch, run 4 feedwater pumps;When the liquid level has 6# floating ball liquid level switch, 5 feed water pumps are started, and a high liquid level alarm signal is sent out.In order to prevent the feed water pump from stopping frequently, the sequence of stopping the water pump is as follows.When the liquid level drops below the 5# float level switch, turn off 1 feed water pump (connect 4 units);When the liquid level drops below the 4# float level switch, turn off 1 feed water pump (connect 3 units);When the liquid level drops below the 3# float level switch, turn off 1 feed water pump (open 2);After the liquid level drops below the 2# float switch, turn off one feedwater pump. () Connect 1 station);When the liquid level drops below the 1# float switch, the feed water pump is fully closed and a low liquid level alarm is issued.In order to prevent a pump from restarting repeatedly, the pumps are put into operation in cycles, running first and then stop, and running first and then stop. When one pump stops due to a failure, the other pump automatically goes into operation.How the float level gauge controls the pumpWhat is the principle of the float level gauge?The float type liquid level gauge uses a magnetic levitation ball as the measuring element. The resistance in the sensor changes linearly through magnetic coupling. The change in resistance is converted into a standard current signal of 4-20mA through an intelligent converter, and the HART signal output or local liquid crystal is overlapped. Display, so as to reach the percentage of the liquid level. This instrument is suitable for sewage treatment in petroleum, chemical, electric power, light industry, medicine and other industries and the measurement of medium liquid level in various atmospheric and pressure vessels, especially suitable for underground storage tanks and storage tanks. Liquid level measurement of oil tank.How does the float level gauge control the pump? What is the principle of the float level gauge? I believe that after reading the above content, I have a comprehensive understanding of the float level gauge. If the float level gauge is malfunctioning, please consult with the instrument manufacturer of Vacorda.


Post time: 21-09-21